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Finding the Fourth Proportional to 65,165.99, 89,926.61 and 36,872.28

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Solution

The fourth proportional to 65,165.99, 89,926.61 and 36,872.28 is: 50,882.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,165.99 : 89,926.61 = 36,872.28 : x
  2. Step 2: Convert to fraction form
    65,165.99/89,926.61 = 36,872.28/x
  3. Step 3: Cross multiply
    65,165.99x = 89,926.61 × 36,872.28
  4. Step 4: Simplify right side
    65,165.99x = 3,315,798,959.01
  5. Step 5: Solve for x
    x = 3,315,798,959.01/65,165.99
  6. Step 6: Final answer
    x = 50,882.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.